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https://issues.apache.org/jira/browse/GERONIMO-4584?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rick McGuire reassigned GERONIMO-4584:
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Assignee: Rick McGuire
> Opening an IMAP folder with *logs* of emails is very expensive in terms of
> memory and cpu
> -----------------------------------------------------------------------------------------
>
> Key: GERONIMO-4584
> URL: https://issues.apache.org/jira/browse/GERONIMO-4584
> Project: Geronimo
> Issue Type: Bug
> Security Level: public(Regular issues)
> Components: mail
> Reporter: Guillaume Nodet
> Assignee: Rick McGuire
> Priority: Minor
>
> {code}
> // this is a real pain, but because we need to track updates
> // to message sequence numbers while the folder is open, the
> // messages list needs to be populated with Message objects
> // to keep track of things. The IMAPMessage objects will not
> // retrieve information from the server until required, so
> they're
> // relatively lightweight at this point.
> populateMessageCache();
> {code}
> {code}
> /**
> * Populate the message cache with dummy messages, ensuring we're filled
> * up to the server-reported number of messages.
> *
> * @exception MessagingException
> */
> protected void populateMessageCache() {
> // spin through the server-reported number of messages and add a
> dummy one to
> // the cache. The message number is assigned from the id counter,
> the
> // sequence number is the cache position + 1.
> for (int i = messages.size(); i < maxSequenceNumber; i++) {
> messages.add(new IMAPMessage(this, ((IMAPStore)store),
> nextMessageID++, i+1));
> }
> }
> {code}
> The above code comes from
> http://svn.apache.org/repos/asf/geronimo/javamail/trunk/geronimo-javamail_1.4/geronimo-javamail_1.4_provider/src/main/java/org/apache/geronimo/javamail/store/imap/IMAPFolder.java.
> When trying to open my gmail account using IMAP, this takes a long time and
> an enormous amount of memory (500 Mb) just to open the folder.
> It might be a good idea to revisit this code if possible.
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